Hi pankaj,
I tried setting the theme to protostar and it looked like this. The accordion still behave the same, as initially hiding the contents when not clicked. The class that causes this is "hideTabs" and it is still there with protostar.
The only solution I can think of now is to change that in the php file that produces that view yet I can't seem to find it. If this is not possible, please feel free to inform me.
As for the layout customization, what it does is to hide the entire course tree, which is not what we wanter to happen.
Thank you for your help!